Spool



No 25, 1941. H. c. HOWSAM 2,264,116

I SPOOL Filed June 22, 1940 f/ar/veo C. flows/9M. WEE I Patented Nov. 25, 1941 UNITED STATES PATENT OFFIC SPOOL Hilyard 0. mm,- Chicago, m, asslgnor' to Hubbard Spool Company, Chicago 11]., a corporation of Illinois Application June 22, 1940, Serial No. 341,842

My invention relates to spools andis of particular importance where spools are molded, die

cast, or otherwise integrally formed of metal, or

of non-metallic material such as plastic material, paper pulp or other composition, pulp or mass, or of material known in the trade as Bakelite" or "Wood-Textolyte," and where the spool after molding, die casting or forming must be dried out or cooled. The important object of the invention is therefore to so form and shape the spool that all the igigure 2 is a sectionon plane Iii-1.1m 1:1

Figure 3 shows amodified form of spool.

The spools shown may be formed integral of metal or other material by die casting or molding. The'spool comprises a cylindrical barrel shellpartlllandtheinnertubepartliforre-w ceiving'spindles or other supporting means for winding-or unloading of the spool. 'ihe spool on 9 Figures 1 and 2 has straight annuiarhead flanges l2 extending from the ends of the barrelshell, the outer surfaces of the flanges being in the same planes with the outer edges of the inner the drawing, in

bath may be wound on thespool, but with my.

improved spool, in which the walls are of 'substantially uniform thiclmess, the heat from the wire will be rapidly and uniformly dissipated and the spool will not be subjected to localized heating which might introduce strain which would 1 tend to crack or break the spool.

. Instead of having the spool flanges straight as shown on Figure 1, these flangesoould be, 10 flaring as indicated by I! on Figure 3. With these flanges. the radial webs ll would follow the flare and at their outer ends would extend between the flared flanges and the inner tube l'l.

Ithus produce a die cast or molded metallic or non-metallic spool which will retain its die cast or molded shape free of internal strain and which is of light weight relative to its capacity.

It is evident that the walls of the spool could be perforated for steam or other treatment of the zo'materialonthespooLandthenwiths-lithew'alls of thespool of substantially uniform thickness.-'

heat or moisture will be rapidly and uniformly I have shown a practical embodiment of my V invention but I do not desire to be'iimited to the exact construction and arrangement shown and described as changes and modifications may be made without departing from the scope of the invention.

I claim as follows: 1. An integral die cast or molded spool comprisingatubuiarbsrrelwalihavingoutwardiy tube part I I. Midway between the ends of the nating in the planes of the outer ed f 8 barrel and of the inner tube ll an annular web 1'3 extends between the barrel shell and the tube II, and extending laterally outwardly from this.

diametrai or cross wall or web it and in radial flaring flanges, and spoke walls extending radiallybetweensaidarbortubeandthebarreiwall and flanges-and extending axially to terminate .attheir outer endsin the planeszof the outer planes between the barrel shell II and the tube 40 edges of the whereby to form segmental ii are the webs II which flmction as spokes. A number of the radial webs may be provided, six equally spaced webs being provided "as best shown on Figure 2. The outer edges of-these radial plane webs preferably terminate adis-.45 flaring at its ends, an arbor tube extend tance short of the planes of the outer surfaces oftheflangesflandendsoftheinnertubell' so that the spool may accurately seat'on a supporting surface or turn on a support without undue friction.

In accordance with my invention, the barrel shell II and its flanges II, the wall of the inner tube II, the cross wall "and the radial webs I, are substantially of the. same thickness so flanges, a cross-wall between said compartments within the spool open at th 7 ends to the exterior.

-2.Anintegr aldiecastorlnoldedspoolcomprisingatubularbarrelwallhavingoutwardly ingaxiallythroughsaidbarrelwalland V hating in the planes of the outer edges of barrelwsll and said arbor tube intermediate the ends of of the flanges thereby forming segmental comthat alter the formed spool is removed'from the partments open to the exterior of the spool, all

die or the mold, the spool may uniformly cool or dry to thereby prevent distortion, warping or cracking. or the introduction of strsin'or stress in the spool. Wire coming from a hot enamelins I said walls being of substantially the same thick- 1 888. .1

- Hit-YARD C. HOWSAM'. 

